JPH0191387U - - Google Patents
Info
- Publication number
- JPH0191387U JPH0191387U JP18696687U JP18696687U JPH0191387U JP H0191387 U JPH0191387 U JP H0191387U JP 18696687 U JP18696687 U JP 18696687U JP 18696687 U JP18696687 U JP 18696687U JP H0191387 U JPH0191387 U JP H0191387U
- Authority
- JP
- Japan
- Prior art keywords
- color
- solid
- imaging device
- state imaging
- pass filter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000003384 imaging method Methods 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 6
- 239000011159 matrix material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Color Television Image Signal Generators (AREA)
Description
第１図はこの考案の一実施例のブロツク回路図
、第２図は動作を説明するための信号波形図、第
３図はこの考案の他の実施例のブロツク回路図、
第４図はこの実施例の動作を説明するための信号
波形図、第５図は従来の固体撮像装置のブロツク
回路図、第６図は固体撮像素子に使用される色フ
イルタの一例を示す図である。
１…固体撮像素子、２…サンプルホールド回路
、３…ローパスフイルタ、４…選択スイツチ、５
…マトリクス・プロセス回路、６…可変利得増幅
器、７…加算器。なお、図中、同一符号は同一、
または相当部分を示す。
Fig. 1 is a block circuit diagram of one embodiment of this invention, Fig. 2 is a signal waveform diagram for explaining the operation, and Fig. 3 is a block circuit diagram of another embodiment of this invention.
FIG. 4 is a signal waveform diagram for explaining the operation of this embodiment, FIG. 5 is a block circuit diagram of a conventional solid-state imaging device, and FIG. 6 is a diagram showing an example of a color filter used in the solid-state imaging device. It is. 1...Solid-state image sensor, 2...Sample hold circuit, 3...Low pass filter, 4...Selection switch, 5
... Matrix process circuit, 6... Variable gain amplifier, 7... Adder. In addition, in the figure, the same reference numerals are the same,
or a significant portion.
Claims (1)
、色フイルタに対応した信号を分離する色信号分
離回路と、色信号を帯域制限するローパスフイル
タと、上記色信号から広帯域輝度信号を得る選択
スイツチとを有する固体撮像装置において、上記
選択スイツチに入力される色信号分離回路の出力
を上記ローパスフイルタで帯域制限した色信号に
もとづいて補正する手段を備えたことを特徴とす
る固体撮像装置。 (2) 補正手段が、ローパスフイルタで帯域制限
された色信号にもとづいてゲインが制御される可
変利得増幅器である実用新案登録請求の範囲第１
項記載の固体撮像装置。 (3) 補正手段が、ローパスフイルタで帯域制限
された色信号にもとづいて算出された信号を加算
する加算器である実用新案登録請求の範囲第１項
記載の固体撮像装置。[Claims for Utility Model Registration] (1) An image sensor having a color filter for color separation, a color signal separation circuit that separates signals corresponding to the color filter, a low-pass filter that limits the band of the color signal, and the above-mentioned color A solid-state imaging device having a selection switch for obtaining a broadband luminance signal from a signal, comprising means for correcting the output of a color signal separation circuit input to the selection switch based on the color signal band-limited by the low-pass filter. A solid-state imaging device featuring: (2) Utility model registration claim 1, in which the correction means is a variable gain amplifier whose gain is controlled based on the color signal band-limited by a low-pass filter.
The solid-state imaging device described in . (3) The solid-state imaging device according to claim 1, wherein the correction means is an adder that adds signals calculated based on color signals band-limited by a low-pass filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18696687U JPH0191387U (en) | 1987-12-07 | 1987-12-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18696687U JPH0191387U (en) | 1987-12-07 | 1987-12-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0191387U true JPH0191387U (en) | 1989-06-15 |
Family
ID=31478159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18696687U Pending JPH0191387U (en) | 1987-12-07 | 1987-12-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0191387U (en) |
-
1987
- 1987-12-07 JP JP18696687U patent/JPH0191387U/ja active Pending
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